Number of (4+1) X (n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,2 or 1,0.
A264210
Number of (4+1) X (n+1) arrays of permutations of 0..n*5+4 with each element having index change +-(.,.) 0,0 0,2 or 1,0.
Terms
- a(0) =64a(1) =3600a(2) =202500a(3) =6444000a(4) =205062400a(5) =7664479280a(6) =286470082441
External references
- oeis: A264210